H02K 21/042 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H02K 21/042

Full Title

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets > Details > Windings on magnets for additional excitation

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.

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